import pygame


class Settings():
    """存储<外星人入侵>的所有设置的类"""

    def __init__(self):
        # 屏幕设置
        self.screen_width = 800
        self.screen_height = 600
        self.bg_color = (207, 227, 234)
        self.bg_image = pygame.image.load('image/bgd.bmp')
        # 飞船设置
        self.ship_speed_factor = 1.5
        self.ship_limit = 5
        # 子弹设置
        self.bullet_speed_factor = 1
        self.bullet_width = 3
        self.bullet_height = 15
        self.bullet_color = 60, 60, 60
        self.bullet_allowed = 3
        # 外星人设置
        self.alien_speed_factor = 1
        self.fleet_drop_speed = 10
        self.fleet_direction = 1

